Improvement in calendars for glooms



M w@ @Av l www@ @Av NAEETERS, PHOTC-LITHOGRAFHER, WASHINGTON, D C.

@eine tars atrnt @fitte ALPHONSO BOARDMAN, OF FORESTVILLE, ASSIGNOR TOHIMSELF ANI) N. C. HUBBELL, OF NEW HAVEN, CONNECTICUT.

Letters Patent No. 56,289, dated July, 186i'.

IMPROVEMENT IN CALENDARS FOR CLOGKS.

TO ALL WHOM IT MAY CONCERN:

Bc it known that I, ALPHONSO EOARDMAN, of Forestville, in the county ofHartford, and Stato of Connecticut, have invented a new Improvement inCalendars; and I do hereby declare the tbllowiug, when taken inconnection with the accompanying drawings, and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawings constitute part of this specification, andrepresent, in

Figure I, a front view.

Figure 2, an end View; and in Figure 3, a similar end view to illustratethe operation of the calendar.

This invention is designed to be placed within aclock-case, and byconnection with the movement e' the clock to be operated at the propertime to present a new date to view, but may be used in a easeindependent of the clock-case, if preferred; and consists, first, in thepeculiar manner of combining the days of the week upon one cylinder,with the days of the month upon a ribbon upon another cylinder, so thata ribbon only is required for the months; and, second, in the escapemontfor changing the date; and to enable others to construct and use myimprovement, I will proceed to describe the same as illustrated in theaccompanying drawings.

A represents the cylinder, upon the surface of which are printed thedays of the week, and is supported upon a shaft, B, resting in properbearings in plates C C. Fixed to the same shaft is a second cylinder, D,and below upon another shaft, E, a third cylinder, F. Fixed tothe twocylinders I) and F is a ribbon, having printed upon its surface themonth and day of the month, and so that by the revolving of onecylinder, F, the ribbon will he drawn from the other cylinder, I), andthe month and day of the month printed on the ribbon corresponding withthe days of the week printed upon the cylinder A. The clock-work uponthe frame C, ns seen in iig. l, causes the cylinder F to draw thc ribbonfrom the cylinder D when permitted. G is au escapement wheel., fixed tothe shaft B, seen in fig. 2. Upon the plate, below the wheel G, I tix alever, II, provided with-two arms a b, represented in`iig. 2 as in astate of rest. At the proper time, sayat twelve o`clock at night, thelever II, by connection with the clock movement, is raised from theposition in tig. 2 to that seen in fig. 3, the tooth on the wheel G,which was held by the arm b, escapes, but the wheel is prevented fromturning by the arm a, which catches upon another tooth; then, when thelever H is heleascd from the operation or" the clock movement, it willfall, as denoted in iig. 2, and the arm 5 catch upon a second tooth andpermit the two cylinders A and B to be moved one notch and'present a newdate, and so ou at the ond of each day. An opening is formed through theclock front, so that the day, month, and day of the month may be plainlyseen therethrough.

It should be stated that, inasmuch as Ythe spaces between the days ofthe week upon the cylinder A are equal, and their position unchanging,while the ribbon, constantly unwinding from the cylinder D, diminishesits diameter, it .is necessary that from the beginning ci' the tape,which is the beginning of the year, the spaces. upon that tape shouldgradually increase, in order that the proper relative position be alwaysmaintained between the day of the week and the month. At the end of theyear the day of the Weel: changes, and that the cylinder A may at thattime be properly adjusted, it is held upon the shaft .so that it may beturned independent of the cylinder D for proper adjustment.

I have represented the calendar as to bc placed in direct connectionwith a clock movement. This is its special design, yet if preferred, andit may4 be often desirable that the calendar be placed in a case, or soas to be operated independent ofthe clockvmovement when so arranged, tochange the day simply raise the lever and let it return, as beforedescribed. The clock-work, which causes the cylinder F to revolve,requires to be wound but once a year. At that time re-wind the ribbonupon the cylinder D, and set the cylinder A so that the proper day ofthe week corresponds with the first day of the year, and the calendar isset for another year.

Having, therefore, thus fully described my invention, what I claim asnew and useful, and desire to secure by Letters Fatent, is-

1. The combination and arrangement of the cylinder A, representing thedays ot' the week upon its surface, with a ribboirupon two cylinders, Dand F, arranged and operated so as to present the date corresponding tothe day of the week.

2. The combination of the wheel G and lever H, provided with its twoarms a and l, with cylinders l) and F arranged so as to release and holdthe cylinders, substantially in the manner herein described.

ALPIIONSO BOARDMAN.

Witnesses:

Jenn E. EMILE, JOHN H. SnUMwAr.

